MBSS Site Summary for: MILE-105-B-2009

Site Photos

Field photo showing stream conditions at site MILE-105-B-2009-1 (Opens in a new window) Field photo showing stream conditions at site MILE-105-B-2009-2 (Opens in a new window)

Located on UT Miles River in the Miles River watershed, 8-digit code: 02130502.
This stream was visited in the spring on 3/17/2009 and again in the summer on 6/11/2009.

Index of Biotic Integrity (IBI) Results:

An Index of Biotic Integrity (IBI) is a scientific tool used to identify and classify stream health. An IBI associates anthropogenic influences on a stream or with biological condition in the stream, and is formulated using data developed from biosurveys.
Details on the development and application of MBSS IBIs are in this document.
Fish IBI Poor - 1.0 / 5.0
Benthic IBI Poor - 1.3 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 245 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 12.9 %
Agricultural Land Use 36.8 %
Forested Land Use 49.6 %


Stream showing woody debris, logs, and rocky substrate.
An example of woody debris in a stream.

Physical Stream Habitat
Instream Habitat 10/20 (Marginal)
Epifaunal Substrate 13/20 (Suboptimal)
Velocity/Depth Diversity 6/20 (Marginal)
Pool Quality
Pool Extent = 70 meters 		7/20 (Marginal)
Riffle Quality
Riffle Extent = 10 meters 		11/20 (Suboptimal)
Shading 80 %
Embeddedness 100 %
The embeddedness, a measure of silt on the stream bottom, was 100%. This is very high, and may adversely affect biotic communities.


Stream Water Quality:
Water temperature 18.8 ° C
Dissolved oxygen (DO) 2.4 mg/L
Dissolved oxygen levels measured in the stream were very low (2.4 mg/L). Many fishes and other aquatic animals cannot tolerate low levels of oxygen in the water.
pH (lab) 7.14
Conductivity 263 µmho/cm
Alkalinity
(acid neutralizing capacity) 		1592.7 µeq/L
Dissolved organic carbon (DOC) 7.6996 mg/L

Biological Stream Condition:

Surveys of the organisms living within a stream can give indications of stream health. Species richness, or the number of different species present, as well as indicator species (species whose presence, absence or abundance can serve as a measure of environmental conditions) are informative for stream health. 		Close-up of a mayfly indicator species.

Fish Survey Results:
The following 1 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Eastern Mudminnow 19
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Eastern Spadefoot Toad
Northern Green Frog
Wood Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Barberry
Japanese Honeysuckle
Japanese Stiltgrass
Multiflora Rose
Wineberry
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Tubificidae Aquatic Worm 74
Limnodrilus Worm 25
Hydrobaenus Midge 7
Lumbriculidae Worm 6
Diplocladius Non-Biting Midges 4
Orthocladiinae Midge 3
Dicrotendipes Non-Biting Midges 2
Tipulidae Cranefly 2
Enchytraeidae Aquatic Worm 2
Chauliodes 1
Tanypodinae Non-Biting Midges 1
Thienemannimyia Group Non-Biting Midges 1
Zavrelimyia Non-Biting Midges 1
Agabus Predatory Aquatic Beetle 1
Diptera True Fly 1
Kick net sampling for macroinvertebrates.
Sampling with a kick net.

Information disclaimer: The information and data on this page is for guidance and general planning purposes only. It should not be used to make decisions on specific matters.